proarrhythmic effects of lidocaine

When given intravenously, disopyramide causes a significant decline in cardiac contractility at doses as low as 1 mg/kg body weight (similar to that administered intravenously in humans).
Andrivet P, Beaslay V, Canh VD "Torsades de pointe with flecainide-amiodarone therapy." Intensive Care Med 16 (1990 342-3.
Gen Physiol 54:553-575, 1969 90 mV -46 mV CP Control: no inactivation TEA: Apparent inactivation ikik 10, once a Drug Molecule Blocks the Channel, Can it Escape?Electrolyte imbalance should be corrected prior to initiating antiarrhythmic therapy.Vulnerable s1s2.2 4, ion Channel Blockade Reduces Excitability (Anti- effect) and Slows Conduction (Pro- effect)Historical observations that provided a foundation for a model of ion channel blockade.Biometry 44:549-559, 1989 18, combining Gated Access with Repetitive Stimulation makes Use-dependent Blockade: Switched Accessibility to a Binding Site b recov r ss - (b 0 - r ss ) e - n b activated a ss - (a 0 - a ss ).H, m, m3h, d, n, n4 T trap function controls drug egress.g.Jacobi J, McGory RW, McCoy H, Matzke GR "Hemodialysis clearance of total and unbound lidocaine." Clin Pharm 2 (1983 54-7.Ventricular tachycardia, ventricular fibrillation, and torsades de pointes have occurred in some patients.The degree to which this can occur has been clearly documented in studies in dogs 5,6.In addition, the drug information contained herein may be time sensitive and should not be utilized cara crack autocad 2007 as a reference resource beyond the date hereof.This material does not endorse drugs, diagnose patients, or recommend therapy.Thomson PD, Rowland M, Melmon KL "The influence of heart failure, liver disease, and renal failure on the disposition of lidocaine in man." Am Heart J 82 (1971 417-21.(b0 - b?) e-(k l)t bactivated ass - (a0 - ass) e-ln brecov rss - (b0 - rss) e-ln la l la ta lr tr lr B 19 Dissecting the Mechanism of Use-Dependent Blockade Using Voltage Clamp Protocols to Amplify or Attenuate Blockade.This topic last updated: Apr 11, 2016.Patients with underlying cardiac dysfunction, bradycardia, hypokalemia, hypomagnesemia, or high antiarrhythmic serum concentrations are at increased risk for drug-induced arrhythmias.Serum concentrations of lidocaine and the active metabolites are increased and the half-life prolonged in patients with renal impairment.
Analytical Description block associated with the nth pulse bn bss (b0 - bss) e -(la ta lr tr)n Use-dependent rate l la ta lr tr Steady-state block bss a?




Clinical monitoring of cardiac function (continual ECG) is required and serum metabolite concentrations and monitoring renal function are recommended.Unknown No information available.Literature review current through: Oct 2017.(b0 - b?) e-l t (b?- b0 2 Kd b/a 13 How to Build a Model that Displaysuse- and frequency dependence?Title: Making Complex Arrhythmias from Simple Mechanisms: Exploring Anti- and Proarrhythmic Effects of Na Channel Blockade with the Guarded Receptor Paradigm 1, making Complex Arrhythmias from Simple, mechanisms Exploring Anti- and Proarrhythmic.Unblocked Drug Blocked (V) A necessary condition: Either a Real or Apparent Voltage-dependent Equilibrium Dissociation Constant: K d (V) / (V) 14, modeling Apparent Voltage Dependence Of the Equilibrium Dissociation Constant Voltage-dependent Access to the Binding Site InaccessibleBlocked kD.View all 7 references, the use of lidocaine is contraindicated in patients with Stokes-Adam syndrome, Wolff-Parkinson White syndrome, or second- or third-degree AV block in the absence of a functional artificial pacemaker, or congenital QT prolongation.
Physiol 262H1305-1310, 1992 40 More Apparent Complexity Monomorphic and Polymorphic Reentry and ECG Monomorphic Polymorphic Polymorphic gna.3 gNa.25 gNa.5 41 Major Lessons Learned FromIdeas Originating in Studies of Johnson, Heistracher and Carmaliet 42 Use caution when repairing channels that arent brokenBlockade.